BMW 8 SERIES (2018)
Running costs, common problems, and reliability data based on 659 real MOT tests in 2024.
MOT Pass Rate
94%
Total Tests (2024)
659
Avg Mileage
42,474 mi
Est. Annual Cost
£2,037
Is the 2018 BMW 8 SERIES reliable?
Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the BMW brand average of 88%.
At 6 years old, 94% of BMW 8 SERIESs from 2018 passed their MOT first time in 2024. That's based on 659 tests across the UK. The average mileage at this age is 42,474 miles.
How does the 2018 BMW 8 SERIES compare?
Mileage Analysis
The average 2018 BMW 8 SERIES has 42,474 miles on the clock, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.
How much does a 2018 BMW 8 SERIES cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
BMW 8 SERIES by Year
Checking a specific BMW 8 SERIES?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2018 BMW 8 SERIES
The 2018 BMW 8 SERIES is a premium performance with a 4395cc petrol engine. 659 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It ranks in the top 21% of all 2018 cars for reliability.
With an average of 42,474 miles at 6 years old, BMW 8 SERIES owners drive about as much as the UK average.
2018 BMW 8 SERIES Fuel Costs
The 4395cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2018 BMW 8 SERIES?
Total estimated annual running cost is £2,037 (£170/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
BMW 8 SERIES Reliability Trend
The BMW 8 SERIES has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2018 BMW 8 SERIES
At 6 years old, the BMW 8 SERIES offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Alternatives to the 2018 BMW 8 SERIES
If reliability is your priority, there are 2 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- MERCEDES C (2016) 88% pass rate (-6%) from 80,181 tests
- AUDI A6 (2016) 89% pass rate (-5%) from 26,437 tests
- PORSCHE CAYENNE (2019) 95% pass rate (+1%) from 9,063 tests
- PORSCHE 911 (2018) 96% pass rate (+2%) from 7,623 tests